condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 5.162458333333333 0.190475 13.8051 Root 2.8356866666666667 0.0 7.56946